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(4) Debt (Tables)
6 Months Ended
Jun. 30, 2021
Debt Disclosure [Abstract]  
Schedule of debt outstanding
               
          Amount Outstanding at 
          June   December 31, 
          2021   2020 
          (In thousands) 
Description  Interest Rate  Maturity         
                
Warehouse lines of credit  5.50% over one month Libor (Minimum 6.50%)   N/A   $   $42,558 
                   
   3.00% over one month Libor (Minimum 3.75%)   December 2022    45,642    45,689 
                   
   4.00% over a commercial paper rate (Minimum 5.00%)   December 2021    32,310    32,265 
                   
Residual interest financing  8.60%   January 2026    17,908    25,576 
                   
   7.86%   June 2026    50,000     
                   
Subordinated renewable notes  Weighted average rate of 9.67% and 10.09% at June 30, 2021 and December 31, 2020, respectively   Weighted average maturity of April 2023 and January 2023 at June 30, 2021 and December 31, 2020, respectively    26,005    21,323 
                   
           $171,865   $167,411